/* GStreamer
* Copyright (C) 2006 Josep Torra <josep@fluendo.com>
* 2006 Mathieu Garcia <matthieu@fluendo.com>
* 2006,2007 Stefan Kost <ensonic@users.sf.net>
* 2008 Sebastian Dröge <slomo@circular-chaos.org>
* 2008 Jan Schmidt <jan.schmidt@sun.com>
*
* gstregistrychunks.c: GstRegistryChunk helper for serialising/deserialising
* plugin entries and features.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/gst_private.h>
#include <gst/gstconfig.h>
#include <gst/gstelement.h>
#include <gst/gsttracerfactory.h>
#include <gst/gsttypefind.h>
#include <gst/gsttypefindfactory.h>
#include <gst/gstdeviceproviderfactory.h>
#include <gst/gstdynamictypefactory.h>
#include <gst/gsturi.h>
#include <gst/gstinfo.h>
#include <gst/gstenumtypes.h>
#include <gst/gstpadtemplate.h>
#include <gst/gstregistrychunks.h>
#define GST_CAT_DEFAULT GST_CAT_REGISTRY
/* count string length, but return -1 if we hit the eof */
static gint
_strnlen (const gchar * str, gint maxlen)
{
gint len = 0;
while (G_LIKELY (len < maxlen)) {
if (G_UNLIKELY (str[len] == '\0'))
return len;
len++;
}
return -1;
}
/* Macros */
#define unpack_element(inptr, outptr, element, endptr, error_label) G_STMT_START{ \
if (inptr + sizeof(element) > endptr) { \
GST_ERROR ("Failed reading element " G_STRINGIFY (element) \
". Have %d bytes need %" G_GSIZE_FORMAT, \
(int) (endptr - inptr), sizeof(element)); \
goto error_label; \
} \
outptr = (element *) inptr; \
inptr += sizeof (element); \
}G_STMT_END
#define unpack_const_string(inptr, outptr, endptr, error_label) G_STMT_START{\
gint _len = _strnlen (inptr, (endptr-inptr)); \
if (_len == -1) \
goto error_label; \
outptr = g_intern_string ((const gchar *)inptr); \
inptr += _len + 1; \
}G_STMT_END
#define unpack_string(inptr, outptr, endptr, error_label) G_STMT_START{\
gint _len = _strnlen (inptr, (endptr-inptr)); \
if (_len == -1) \
goto error_label; \
outptr = g_memdup ((gconstpointer)inptr, _len + 1); \
inptr += _len + 1; \
}G_STMT_END
#define unpack_string_nocopy(inptr, outptr, endptr, error_label) G_STMT_START{\
gint _len = _strnlen (inptr, (endptr-inptr)); \
if (_len == -1) \
goto error_label; \
outptr = (const gchar *)inptr; \
inptr += _len + 1; \
}G_STMT_END
#define ALIGNMENT (sizeof (void *))
#define alignment(_address) (gsize)_address%ALIGNMENT
#define align(_ptr) _ptr += (( alignment(_ptr) == 0) ? 0 : ALIGNMENT-alignment(_ptr))
void
_priv_gst_registry_chunk_free (GstRegistryChunk * chunk)
{
if (!(chunk->flags & GST_REGISTRY_CHUNK_FLAG_CONST)) {
if ((chunk->flags & GST_REGISTRY_CHUNK_FLAG_MALLOC))
g_free (chunk->data);
else
g_slice_free1 (chunk->size, chunk->data);
}
g_slice_free (GstRegistryChunk, chunk);
}
/*
* gst_registry_chunks_save_const_string:
*
* Store a const string in a binary chunk.
*
* Returns: %TRUE for success
*/
inline static gboolean
gst_registry_chunks_save_const_string (GList ** list, const gchar * str)
{
GstRegistryChunk *chunk;
if (G_UNLIKELY (str == NULL)) {
GST_ERROR ("unexpected NULL string in plugin or plugin feature data");
str = "";
}
chunk = g_slice_new (GstRegistryChunk);
chunk->data = (gpointer) str;
chunk->size = strlen ((gchar *) chunk->data) + 1;
chunk->flags = GST_REGISTRY_CHUNK_FLAG_CONST;
chunk->align = FALSE;
*list = g_list_prepend (*list, chunk);
return TRUE;
}
/*
* gst_registry_chunks_save_string:
*
* Store a string in a binary chunk.
*
* Returns: %TRUE for success
*/
inline static gboolean
gst_registry_chunks_save_string (GList ** list, gchar * str)
{
GstRegistryChunk *chunk;
chunk = g_slice_new (GstRegistryChunk);
chunk->data = str;
chunk->size = strlen ((gchar *) chunk->data) + 1;
chunk->flags = GST_REGISTRY_CHUNK_FLAG_MALLOC;
chunk->align = FALSE;
*list = g_list_prepend (*list, chunk);
return TRUE;
}
/*
* gst_registry_chunks_save_data:
*
* Store some data in a binary chunk.
*
* Returns: the initialized chunk
*/
inline static GstRegistryChunk *
gst_registry_chunks_make_data (gpointer data, gulong size)
{
GstRegistryChunk *chunk;
chunk = g_slice_new (GstRegistryChunk);
chunk->data = data;
chunk->size = size;
chunk->flags = GST_REGISTRY_CHUNK_FLAG_NONE;
chunk->align = TRUE;
return chunk;
}
/*
* gst_registry_chunks_save_pad_template:
*
* Store pad_templates in binary chunks.
*
* Returns: %TRUE for success
*/
static gboolean
gst_registry_chunks_save_pad_template (GList ** list,
GstStaticPadTemplate * template)
{
GstRegistryChunkPadTemplate *pt;
GstRegistryChunk *chk;
pt = g_slice_new (GstRegistryChunkPadTemplate);
chk =
gst_registry_chunks_make_data (pt, sizeof (GstRegistryChunkPadTemplate));
pt->presence = template->presence;
pt->direction = template->direction;
/* pack pad template strings */
gst_registry_chunks_save_const_string (list,
(gchar *) (template->static_caps.string));
gst_registry_chunks_save_const_string (list, template->name_template);
*list = g_list_prepend (*list, chk);
return TRUE;
}
/*
* gst_registry_chunks_save_feature:
*
* Store features in binary chunks.
*
* Returns: %TRUE for success
*/
static gboolean
gst_registry_chunks_save_feature (GList ** list, GstPluginFeature * feature)
{
const gchar *type_name = G_OBJECT_TYPE_NAME (feature);
GstRegistryChunkPluginFeature *pf = NULL;
GstRegistryChunk *chk = NULL;
GList *walk;
gsize pf_size = 0;
if (!type_name) {
GST_ERROR ("NULL feature type_name, aborting.");
return FALSE;
}
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstRegistryChunkElementFactory *ef;
GstElementFactory *factory = GST_ELEMENT_FACTORY (feature);
/* Initialize with zeroes because of struct padding and
* valgrind complaining about copying unitialized memory
*/
ef = g_slice_new0 (GstRegistryChunkElementFactory);
pf_size = sizeof (GstRegistryChunkElementFactory);
chk = gst_registry_chunks_make_data (ef, pf_size);
ef->npadtemplates = ef->ninterfaces = ef->nuriprotocols = 0;
pf = (GstRegistryChunkPluginFeature *) ef;
/* save interfaces */
for (walk = factory->interfaces; walk;
walk = g_list_next (walk), ef->ninterfaces++) {
gst_registry_chunks_save_const_string (list, (gchar *) walk->data);
}
GST_DEBUG_OBJECT (feature, "saved %d interfaces %d pad templates",
ef->ninterfaces, ef->npadtemplates);
/* save uritypes */
if (GST_URI_TYPE_IS_VALID (factory->uri_type)) {
if (factory->uri_protocols && *factory->uri_protocols) {
GstRegistryChunk *subchk;
gchar **protocol;
subchk =
gst_registry_chunks_make_data (&factory->uri_type,
sizeof (factory->uri_type));
subchk->flags = GST_REGISTRY_CHUNK_FLAG_CONST;
protocol = factory->uri_protocols;
while (*protocol) {
gst_registry_chunks_save_const_string (list, *protocol++);
ef->nuriprotocols++;
}
*list = g_list_prepend (*list, subchk);
GST_DEBUG_OBJECT (feature, "Saved %d UriTypes", ef->nuriprotocols);
} else {
g_warning ("GStreamer feature '%s' is URI handler but does not provide"
" any protocols it can handle", GST_OBJECT_NAME (feature));
}
}
/* save pad-templates */
for (walk = factory->staticpadtemplates; walk;
walk = g_list_next (walk), ef->npadtemplates++) {
GstStaticPadTemplate *template = walk->data;
if (!gst_registry_chunks_save_pad_template (list, template)) {
GST_ERROR_OBJECT (feature, "Can't fill pad template, aborting.");
goto fail;
}
}
/* pack element metadata strings */
gst_registry_chunks_save_string (list,
gst_structure_to_string (factory->metadata));
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstRegistryChunkTypeFindFactory *tff;
GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (feature);
gchar *str;
/* Initialize with zeroes because of struct padding and
* valgrind complaining about copying unitialized memory
*/
tff = g_slice_new0 (GstRegistryChunkTypeFindFactory);
pf_size = sizeof (GstRegistryChunkTypeFindFactory);
chk = gst_registry_chunks_make_data (tff, pf_size);
tff->nextensions = 0;
pf = (GstRegistryChunkPluginFeature *) tff;
/* save extensions */
if (factory->extensions) {
while (factory->extensions[tff->nextensions]) {
gst_registry_chunks_save_const_string (list,
factory->extensions[tff->nextensions++]);
}
}
GST_DEBUG_OBJECT (feature, "saved %d extensions", tff->nextensions);
/* save caps */
if (factory->caps) {
GstCaps *fcaps = gst_caps_ref (factory->caps);
/* we simplify the caps before saving. This is a lot faster
* when loading them later on */
fcaps = gst_caps_simplify (fcaps);
str = gst_caps_to_string (fcaps);
gst_caps_unref (fcaps);
gst_registry_chunks_save_string (list, str);
} else {
gst_registry_chunks_save_const_string (list, "");
}
} else if (GST_IS_DEVICE_PROVIDER_FACTORY (feature)) {
GstRegistryChunkDeviceProviderFactory *tff;
GstDeviceProviderFactory *factory = GST_DEVICE_PROVIDER_FACTORY (feature);
/* Initialize with zeroes because of struct padding and
* valgrind complaining about copying unitialized memory
*/
tff = g_slice_new0 (GstRegistryChunkDeviceProviderFactory);
chk =
gst_registry_chunks_make_data (tff,
sizeof (GstRegistryChunkDeviceProviderFactory));
pf = (GstRegistryChunkPluginFeature *) tff;
/* pack element metadata strings */
gst_registry_chunks_save_string (list,
gst_structure_to_string (factory->metadata));
} else if (GST_IS_TRACER_FACTORY (feature)) {
/* Initialize with zeroes because of struct padding and
* valgrind complaining about copying unitialized memory
*/
pf = g_slice_new0 (GstRegistryChunkPluginFeature);
pf_size = sizeof (GstRegistryChunkPluginFeature);
chk = gst_registry_chunks_make_data (pf, pf_size);
} else if (GST_IS_DYNAMIC_TYPE_FACTORY (feature)) {
GstRegistryChunkDynamicTypeFactory *tmp;
tmp = g_slice_new0 (GstRegistryChunkDynamicTypeFactory);
chk =
gst_registry_chunks_make_data (tmp,
sizeof (GstRegistryChunkDynamicTypeFactory));
pf = (GstRegistryChunkPluginFeature *) tmp;
} else {
GST_WARNING_OBJECT (feature, "unhandled feature type '%s'", type_name);
}
if (pf) {
pf->rank = feature->rank;
*list = g_list_prepend (*list, chk);
/* pack plugin feature strings */
gst_registry_chunks_save_const_string (list, GST_OBJECT_NAME (feature));
gst_registry_chunks_save_const_string (list, (gchar *) type_name);
return TRUE;
}
/* Errors */
fail:
g_slice_free (GstRegistryChunk, chk);
g_slice_free1 (pf_size, pf);
return FALSE;
}
static gboolean
gst_registry_chunks_save_plugin_dep (GList ** list, GstPluginDep * dep)
{
GstRegistryChunkDep *ed;
GstRegistryChunk *chk;
gchar **s;
ed = g_slice_new (GstRegistryChunkDep);
chk = gst_registry_chunks_make_data (ed, sizeof (GstRegistryChunkDep));
ed->flags = dep->flags;
ed->n_env_vars = 0;
ed->n_paths = 0;
ed->n_names = 0;
ed->env_hash = dep->env_hash;
ed->stat_hash = dep->stat_hash;
for (s = dep->env_vars; s != NULL && *s != NULL; ++s, ++ed->n_env_vars)
gst_registry_chunks_save_string (list, g_strdup (*s));
for (s = dep->paths; s != NULL && *s != NULL; ++s, ++ed->n_paths)
gst_registry_chunks_save_string (list, g_strdup (*s));
for (s = dep->names; s != NULL && *s != NULL; ++s, ++ed->n_names)
gst_registry_chunks_save_string (list, g_strdup (*s));
*list = g_list_prepend (*list, chk);
GST_LOG ("Saved external plugin dependency");
return TRUE;
}
/*
* _priv_gst_registry_chunks_save_plugin:
*
* Adapt a GstPlugin to our GstRegistryChunkPluginElement structure, and
* prepend it as a GstRegistryChunk in the provided list.
*
*/
gboolean
_priv_gst_registry_chunks_save_plugin (GList ** list, GstRegistry * registry,
GstPlugin * plugin)
{
GstRegistryChunkPluginElement *pe;
GstRegistryChunk *chk;
GList *plugin_features = NULL;
GList *walk;
pe = g_slice_new (GstRegistryChunkPluginElement);
chk =
gst_registry_chunks_make_data (pe,
sizeof (GstRegistryChunkPluginElement));
pe->file_size = plugin->file_size;
pe->file_mtime = plugin->file_mtime;
pe->nfeatures = 0;
pe->n_deps = 0;
/* pack external deps */
for (walk = plugin->priv->deps; walk != NULL; walk = walk->next) {
if (!gst_registry_chunks_save_plugin_dep (list, walk->data)) {
GST_ERROR ("Could not save external plugin dependency, aborting.");
goto fail;
}
++pe->n_deps;
}
/* pack plugin features */
plugin_features =
gst_registry_get_feature_list_by_plugin (registry, plugin->desc.name);
for (walk = plugin_features; walk; walk = g_list_next (walk), pe->nfeatures++) {
GstPluginFeature *feature = GST_PLUGIN_FEATURE (walk->data);
if (!gst_registry_chunks_save_feature (list, feature)) {
GST_ERROR ("Can't fill plugin feature, aborting.");
goto fail;
}
}
gst_plugin_feature_list_free (plugin_features);
/* pack cache data */
if (plugin->priv->cache_data) {
gchar *cache_str = gst_structure_to_string (plugin->priv->cache_data);
gst_registry_chunks_save_string (list, cache_str);
} else {
gst_registry_chunks_save_const_string (list, "");
}
/* pack plugin element strings */
gst_registry_chunks_save_const_string (list,
(plugin->desc.release_datetime) ? plugin->desc.release_datetime : "");
gst_registry_chunks_save_const_string (list, plugin->desc.origin);
gst_registry_chunks_save_const_string (list, plugin->desc.package);
gst_registry_chunks_save_const_string (list, plugin->desc.source);
gst_registry_chunks_save_const_string (list, plugin->desc.license);
gst_registry_chunks_save_const_string (list, plugin->desc.version);
gst_registry_chunks_save_const_string (list, plugin->filename);
gst_registry_chunks_save_const_string (list, plugin->desc.description);
gst_registry_chunks_save_const_string (list, plugin->desc.name);
*list = g_list_prepend (*list, chk);
GST_DEBUG ("Found %d features in plugin \"%s\"", pe->nfeatures,
plugin->desc.name);
return TRUE;
/* Errors */
fail:
gst_plugin_feature_list_free (plugin_features);
g_slice_free (GstRegistryChunk, chk);
g_slice_free (GstRegistryChunkPluginElement, pe);
return FALSE;
}
/*
* gst_registry_chunks_load_pad_template:
*
* Make a new GstStaticPadTemplate from current GstRegistryChunkPadTemplate
* structure.
*
* Returns: new GstStaticPadTemplate
*/
static gboolean
gst_registry_chunks_load_pad_template (GstElementFactory * factory, gchar ** in,
gchar * end)
{
GstRegistryChunkPadTemplate *pt;
GstStaticPadTemplate *template = NULL;
align (*in);
GST_DEBUG ("Reading/casting for GstRegistryChunkPadTemplate at address %p",
*in);
unpack_element (*in, pt, GstRegistryChunkPadTemplate, end, fail);
template = g_slice_new (GstStaticPadTemplate);
template->presence = pt->presence;
template->direction = (GstPadDirection) pt->direction;
template->static_caps.caps = NULL;
/* unpack pad template strings */
unpack_const_string (*in, template->name_template, end, fail);
unpack_const_string (*in, template->static_caps.string, end, fail);
__gst_element_factory_add_static_pad_template (factory, template);
GST_DEBUG ("Added pad_template %s", template->name_template);
return TRUE;
fail:
GST_INFO ("Reading pad template failed");
if (template)
g_slice_free (GstStaticPadTemplate, template);
return FALSE;
}
/*
* gst_registry_chunks_load_feature:
*
* Make a new GstPluginFeature from current binary plugin feature structure
*
* Returns: new GstPluginFeature
*/
static gboolean
gst_registry_chunks_load_feature (GstRegistry * registry, gchar ** in,
gchar * end, GstPlugin * plugin)
{
GstRegistryChunkPluginFeature *pf = NULL;
GstPluginFeature *feature = NULL;
const gchar *const_str, *type_name;
const gchar *feature_name;
const gchar *plugin_name;
gchar *str;
GType type;
guint i;
plugin_name = plugin->desc.name;
/* unpack plugin feature strings */
unpack_string_nocopy (*in, type_name, end, fail);
if (G_UNLIKELY (!type_name)) {
GST_ERROR ("No feature type name");
return FALSE;
}
/* unpack more plugin feature strings */
unpack_string_nocopy (*in, feature_name, end, fail);
GST_DEBUG ("Plugin '%s' feature '%s' typename : '%s'", plugin_name,
feature_name, type_name);
if (G_UNLIKELY (!(type = g_type_from_name (type_name)))) {
GST_ERROR ("Unknown type from typename '%s' for plugin '%s'", type_name,
plugin_name);
return FALSE;
}
if (G_UNLIKELY ((feature = g_object_new (type, NULL)) == NULL)) {
GST_ERROR ("Can't create feature from type");
return FALSE;
}
gst_plugin_feature_set_name (feature, feature_name);
if (G_UNLIKELY (!GST_IS_PLUGIN_FEATURE (feature))) {
GST_ERROR ("typename : '%s' is not a plugin feature", type_name);
goto fail;
}
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstRegistryChunkElementFactory *ef;
guint n;
GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (feature);
gchar *str;
const gchar *meta_data_str;
align (*in);
GST_LOG ("Reading/casting for GstRegistryChunkElementFactory at address %p",
*in);
unpack_element (*in, ef, GstRegistryChunkElementFactory, end, fail);
pf = (GstRegistryChunkPluginFeature *) ef;
/* unpack element factory strings */
unpack_string_nocopy (*in, meta_data_str, end, fail);
if (meta_data_str && *meta_data_str) {
factory->metadata = gst_structure_from_string (meta_data_str, NULL);
if (!factory->metadata) {
GST_ERROR
("Error when trying to deserialize structure for metadata '%s'",
meta_data_str);
goto fail;
}
}
n = ef->npadtemplates;
GST_DEBUG ("Element factory : npadtemplates=%d", n);
/* load pad templates */
for (i = 0; i < n; i++) {
if (G_UNLIKELY (!gst_registry_chunks_load_pad_template (factory, in,
end))) {
GST_ERROR ("Error while loading binary pad template");
goto fail;
}
}
/* load uritypes */
if (G_UNLIKELY ((n = ef->nuriprotocols))) {
GST_DEBUG ("Reading %d UriTypes at address %p", n, *in);
align (*in);
factory->uri_type = *((guint *) * in);
*in += sizeof (factory->uri_type);
/*unpack_element(*in, &factory->uri_type, factory->uri_type, end, fail); */
factory->uri_protocols = g_new0 (gchar *, n + 1);
for (i = 0; i < n; i++) {
unpack_string (*in, str, end, fail);
factory->uri_protocols[i] = str;
}
}
/* load interfaces */
if (G_UNLIKELY ((n = ef->ninterfaces))) {
GST_DEBUG ("Reading %d Interfaces at address %p", n, *in);
for (i = 0; i < n; i++) {
unpack_string_nocopy (*in, const_str, end, fail);
__gst_element_factory_add_interface (factory, const_str);
}
}
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstRegistryChunkTypeFindFactory *tff;
GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (feature);
align (*in);
GST_DEBUG
("Reading/casting for GstRegistryChunkPluginFeature at address %p",
*in);
unpack_element (*in, tff, GstRegistryChunkTypeFindFactory, end, fail);
pf = (GstRegistryChunkPluginFeature *) tff;
/* load typefinder caps */
unpack_string_nocopy (*in, const_str, end, fail);
if (const_str != NULL && *const_str != '\0')
factory->caps = gst_caps_from_string (const_str);
else
factory->caps = NULL;
/* load extensions */
if (tff->nextensions) {
GST_DEBUG ("Reading %d Typefind extensions at address %p",
tff->nextensions, *in);
factory->extensions = g_new0 (gchar *, tff->nextensions + 1);
/* unpack in reverse order to maintain the correct order */
for (i = tff->nextensions; i > 0; i--) {
unpack_string (*in, str, end, fail);
factory->extensions[i - 1] = str;
}
}
} else if (GST_IS_DEVICE_PROVIDER_FACTORY (feature)) {
GstRegistryChunkDeviceProviderFactory *dmf;
GstDeviceProviderFactory *factory = GST_DEVICE_PROVIDER_FACTORY (feature);
const gchar *meta_data_str;
align (*in);
GST_DEBUG
("Reading/casting for GstRegistryChunkPluginFeature at address %p",
*in);
unpack_element (*in, dmf, GstRegistryChunkDeviceProviderFactory, end, fail);
pf = (GstRegistryChunkPluginFeature *) dmf;
/* unpack element factory strings */
unpack_string_nocopy (*in, meta_data_str, end, fail);
if (meta_data_str && *meta_data_str) {
factory->metadata = gst_structure_from_string (meta_data_str, NULL);
if (!factory->metadata) {
GST_ERROR
("Error when trying to deserialize structure for metadata '%s'",
meta_data_str);
goto fail;
}
}
} else if (GST_IS_TRACER_FACTORY (feature)) {
align (*in);
GST_DEBUG
("Reading/casting for GstRegistryChunkPluginFeature at address %p",
*in);
unpack_element (*in, pf, GstRegistryChunkPluginFeature, end, fail);
} else if (GST_IS_DYNAMIC_TYPE_FACTORY (feature)) {
GstRegistryChunkDynamicTypeFactory *tmp;
align (*in);
unpack_element (*in, tmp, GstRegistryChunkDynamicTypeFactory, end, fail);
pf = (GstRegistryChunkPluginFeature *) tmp;
} else {
GST_WARNING ("unhandled factory type : %s", G_OBJECT_TYPE_NAME (feature));
goto fail;
}
feature->rank = pf->rank;
feature->plugin_name = plugin_name;
feature->plugin = plugin;
g_object_add_weak_pointer ((GObject *) plugin,
(gpointer *) & feature->plugin);
gst_registry_add_feature (registry, feature);
GST_DEBUG ("Added feature %s, plugin %p %s", GST_OBJECT_NAME (feature),
plugin, plugin_name);
return TRUE;
/* Errors */
fail:
GST_INFO ("Reading plugin feature failed");
if (feature) {
if (GST_IS_OBJECT (feature))
gst_object_unref (feature);
else
g_object_unref (feature);
}
return FALSE;
}
static gchar **
gst_registry_chunks_load_plugin_dep_strv (gchar ** in, gchar * end, guint n)
{
gchar **arr;
if (n == 0)
return NULL;
arr = g_new0 (gchar *, n + 1);
while (n > 0) {
unpack_string (*in, arr[n - 1], end, fail);
--n;
}
return arr;
fail:
GST_INFO ("Reading plugin dependency strings failed");
g_strfreev (arr);
return NULL;
}
static gboolean
gst_registry_chunks_load_plugin_dep (GstPlugin * plugin, gchar ** in,
gchar * end)
{
GstPluginDep *dep;
GstRegistryChunkDep *d;
gchar **s;
align (*in);
GST_LOG_OBJECT (plugin, "Unpacking GstRegistryChunkDep from %p", *in);
unpack_element (*in, d, GstRegistryChunkDep, end, fail);
dep = g_slice_new (GstPluginDep);
dep->env_hash = d->env_hash;
dep->stat_hash = d->stat_hash;
dep->flags = (GstPluginDependencyFlags) d->flags;
dep->names = gst_registry_chunks_load_plugin_dep_strv (in, end, d->n_names);
dep->paths = gst_registry_chunks_load_plugin_dep_strv (in, end, d->n_paths);
dep->env_vars =
gst_registry_chunks_load_plugin_dep_strv (in, end, d->n_env_vars);
plugin->priv->deps = g_list_append (plugin->priv->deps, dep);
GST_DEBUG_OBJECT (plugin, "Loaded external plugin dependency from registry: "
"env_hash: %08x, stat_hash: %08x", dep->env_hash, dep->stat_hash);
for (s = dep->env_vars; s != NULL && *s != NULL; ++s)
GST_LOG_OBJECT (plugin, " evar: %s", *s);
for (s = dep->paths; s != NULL && *s != NULL; ++s)
GST_LOG_OBJECT (plugin, " path: %s", *s);
for (s = dep->names; s != NULL && *s != NULL; ++s)
GST_LOG_OBJECT (plugin, " name: %s", *s);
return TRUE;
fail:
GST_INFO ("Reading plugin dependency failed");
return FALSE;
}
/*
* _priv_gst_registry_chunks_load_plugin:
*
* Make a new GstPlugin from current GstRegistryChunkPluginElement structure
* and add it to the GstRegistry. Return an offset to the next
* GstRegistryChunkPluginElement structure.
*/
gboolean
_priv_gst_registry_chunks_load_plugin (GstRegistry * registry, gchar ** in,
gchar * end, GstPlugin ** out_plugin)
{
#ifndef GST_DISABLE_GST_DEBUG
gchar *start = *in;
#endif
GstRegistryChunkPluginElement *pe;
const gchar *cache_str = NULL;
GstPlugin *plugin = NULL;
guint i, n;
align (*in);
GST_LOG ("Reading/casting for GstRegistryChunkPluginElement at address %p",
*in);
unpack_element (*in, pe, GstRegistryChunkPluginElement, end, fail);
plugin = g_object_new (GST_TYPE_PLUGIN, NULL);
/* TODO: also set GST_PLUGIN_FLAG_CONST */
GST_OBJECT_FLAG_SET (plugin, GST_PLUGIN_FLAG_CACHED);
plugin->file_mtime = pe->file_mtime;
plugin->file_size = pe->file_size;
/* unpack plugin element strings */
unpack_const_string (*in, plugin->desc.name, end, fail);
unpack_const_string (*in, plugin->desc.description, end, fail);
unpack_string (*in, plugin->filename, end, fail);
unpack_const_string (*in, plugin->desc.version, end, fail);
unpack_const_string (*in, plugin->desc.license, end, fail);
unpack_const_string (*in, plugin->desc.source, end, fail);
unpack_const_string (*in, plugin->desc.package, end, fail);
unpack_const_string (*in, plugin->desc.origin, end, fail);
unpack_const_string (*in, plugin->desc.release_datetime, end, fail);
GST_LOG ("read strings for name='%s'", plugin->desc.name);
GST_LOG (" desc.description='%s'", plugin->desc.description);
GST_LOG (" filename='%s'", plugin->filename);
GST_LOG (" desc.version='%s'", plugin->desc.version);
GST_LOG (" desc.license='%s'", plugin->desc.license);
GST_LOG (" desc.source='%s'", plugin->desc.source);
GST_LOG (" desc.package='%s'", plugin->desc.package);
GST_LOG (" desc.origin='%s'", plugin->desc.origin);
GST_LOG (" desc.datetime=%s", plugin->desc.release_datetime);
if (plugin->desc.release_datetime[0] == '\0')
plugin->desc.release_datetime = NULL;
/* unpack cache data */
unpack_string_nocopy (*in, cache_str, end, fail);
if (cache_str != NULL && *cache_str != '\0')
plugin->priv->cache_data = gst_structure_from_string (cache_str, NULL);
/* If the license string is 'BLACKLIST', mark this as a blacklisted
* plugin */
if (strcmp (plugin->desc.license, "BLACKLIST") == 0)
GST_OBJECT_FLAG_SET (plugin, GST_PLUGIN_FLAG_BLACKLISTED);
plugin->basename = g_path_get_basename (plugin->filename);
/* Takes ownership of plugin */
gst_registry_add_plugin (registry, plugin);
n = pe->nfeatures;
GST_DEBUG ("Added plugin '%s' plugin with %d features from binary registry",
plugin->desc.name, n);
/* Load plugin features */
for (i = 0; i < n; i++) {
if (G_UNLIKELY (!gst_registry_chunks_load_feature (registry, in, end,
plugin))) {
GST_ERROR ("Error while loading binary feature for plugin '%s'",
GST_STR_NULL (plugin->desc.name));
gst_registry_remove_plugin (registry, plugin);
goto fail;
}
}
/* Load external plugin dependencies */
for (i = 0; i < pe->n_deps; ++i) {
if (G_UNLIKELY (!gst_registry_chunks_load_plugin_dep (plugin, in, end))) {
GST_ERROR_OBJECT (plugin, "Could not read external plugin dependency "
"for plugin '%s'", GST_STR_NULL (plugin->desc.name));
gst_registry_remove_plugin (registry, plugin);
goto fail;
}
}
if (out_plugin)
*out_plugin = plugin;
return TRUE;
/* Errors */
fail:
GST_INFO ("Reading plugin failed after %u bytes", (guint) (end - start));
return FALSE;
}
void
_priv_gst_registry_chunks_save_global_header (GList ** list,
GstRegistry * registry, guint32 filter_env_hash)
{
GstRegistryChunkGlobalHeader *hdr;
GstRegistryChunk *chk;
hdr = g_slice_new (GstRegistryChunkGlobalHeader);
chk = gst_registry_chunks_make_data (hdr,
sizeof (GstRegistryChunkGlobalHeader));
hdr->filter_env_hash = filter_env_hash;
*list = g_list_prepend (*list, chk);
GST_LOG ("Saved global header (filter_env_hash=0x%08x)", filter_env_hash);
}
gboolean
_priv_gst_registry_chunks_load_global_header (GstRegistry * registry,
gchar ** in, gchar * end, guint32 * filter_env_hash)
{
GstRegistryChunkGlobalHeader *hdr;
align (*in);
GST_LOG ("Reading/casting for GstRegistryChunkGlobalHeader at %p", *in);
unpack_element (*in, hdr, GstRegistryChunkGlobalHeader, end, fail);
*filter_env_hash = hdr->filter_env_hash;
return TRUE;
/* Errors */
fail:
GST_WARNING ("Reading global header failed");
return FALSE;
}